如何使用Visual Studio扩展VC ++宏引用？

Question

是否可以扩展宏引用并查看传递给编译器的代码是什么样的，而不是右键单击宏标识符然后单击“转到定义”？

Answer 1

＆＃34;项目+属性，C / C ++，预处理器，文件预处理=是。编译并打开构建目录中的.i文件。

Answer 2

I heard all possible negative answers on the topic:

• macros can only be expanded not evaluated
• preprocessor should parse also include files
• nested macros can be over-complicated
• conditional preprocessing can be tricky
• macros are evil just avoid them etc
• etc....

They are all true, but IMO they collide with the reality of everydays programming.

In fact, working on old C project where macros, where mostly simply used as functions, this became of crucial importance for me. Generating all preprocessed files with /P works but is overkilling and time taking. I just needed a tool that expands a simple macro defined a few lines above or at maximum in other file.

How to do that?

1. On Linux simply use GDB and his expand macros capabilities
2. On windows I use https://www.jetbrains.com/resharper-cpp/ integrated into Visual Studio

So, Yes, in a practical sense, it is possible.

Answer 3

自VS2017以来，您可以在快速信息工具提示中看到宏扩展。一个非常酷的新功能。

Macro Expansions in Quick Info Tooltips